Stabilizer for floating engine mountings



y 3933- P. E. MATTHEW/5% 1,908,?75

STABILIZER FOR FLOATING ENGINE MOUNTINGS Filed Oct. 7, 1931 IN VENT OR BY .5 E.MlZ/Mems; G Q- A KW MS .4270)? 165 Patented May 16, 1933 PAT-En PHILIP E. MATTHEWS, OF PLAINFIELD, NEW JERSEY, ASSIGNOR TO INTERNATIONAL MOTOR COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE STABILIZER FOR FLOATING ENGINE MOUNTmGS Application filed. October 7, 1931. Serial No. 567,421.

The present invention relates to engine mountings and embodies, more specifically, an improved stabilizing mechanism for engine mountings of the floating type.

In motor vehicle constructions wherein the engines are mounted upon the vehicle frames with provision for a degree of fioating with respect thereto, it frequently happens that objectionable oscillations of the engine or frame take place when the vehicle is standing still or under specific conditions. These oscillations set up a vibration in the body of the car which is very noticeable and objectionable to the passengers.

It is an object of the present invention, accordingly, to provide an engine mounting of the floating type, wherein the engine vibrations are stabilized by a mechanism which functions under certain specific conditions to eliminate objectionable engine vibration.

More specifically, an object of the invention is to provide a stabilizing device for engines which are supported by floating mountings whereby objectionable vibrations may be eliminated when the engines are running at a slow speed.

More specifically, an object of thevinvention is to provide a stabilizing device of the above character which functions in response to the vacuum available in theengine manifold.

Further objects, not specifically enumerated above, will be apparent as the invention is described in greater detail in connection with the accompanying drawing, wherein:

Figure 1 is a view in side elevation, showing an engine having a stabilizing device constructed in accordance with the present invention.

Figure 2 is a detail view in section, showing a modified form of stabilizing device.

Figure 3 is a further modified device constructed in accordance with the present invention. 7

Referring to the above drawing, the engine of a motor vehicle is shown at 10 and the dash board at 11. The conventional accelerator pedal 12 is hinged at 13 to the dash and is formed with an arm 1d which preferably engages a link 15 for I valve 16.

Valve 16 communicates with the intake manifold 17 of the engine through a conduit 18 and a housing 19 is mountedvupon the dash and formed with a suction chamber 20. Suction chamber 20 communicates with the valve 16 through the conduit 21 and a piston 22 is adapted to slide in the chamber 20 in response to variations in degree of vacuum within the chamber. A rod 23 is connected to a lever 24 through a lost motion connection, the other end of lever 2st being hinged upon a bracket 25 which is carried by the dash.

A bearing surface 26 may be formed upon the engine to receive a pressure foot 27 which is carried by an arm 28, pivoted upon lever 24 at 29. An arcuate finger 3O mounts the pressure foot 27 in juxtaposed relationship with respect to plate 26 and upon a fall in speed of the engine, the suction within the manifold increases and the piston 22 is moved to the left as viewed in Figure 1. Such motion forces the pressure foot 27 against the surface 26 and prevents objectionable vibrations under idling or slow speed conditions of operation of the engine.

In the construction shown in Figure 2, the arm 28 is formed with an axial recess 31 within which a plunger 32 is movable. Spring 83 urges the plunger to the left and causes a collar 34 formed thereon to engage a plate 85. A tongue 36 is formed on the plunger and is adapted to mate with a slot 37 which is formed in the plate 26. This affords a positive look in place of the friction damping mechanism described above.

In the construction shown in Figure 3, the dash board 11 and bracket 25' carry a lever 38 which is pivoted at 39 to the bracket 25.

operating a R A spring only urges the arm 38 outwardly and this arm carries a pressure member 41 to engage the pressure plate 26, thus exerting a continuous force against the pressure surface to prevent vibration of the engine.

While the invention has been described with specific reference to the accompanying drawing, it is not to be limited, save as defined in the appended claims.

I claim as my invention:

1. An engine stabilizing device comprising an engine, aframe upon which the engine is mounted, yielding means to mount theengine on the frame, friction means between the engine and frame to resist-relative movement therebetween, an-arm pivoted on the frame and urged away from the frame and toward the engine, and means to mount the friction means on the arm. 7 I

2. An engine stabilizing device comprising an engine, a frame upon which the engine is mounted, yielding means to mount the engine on the frame, a friction device between the engine and frame, and means to actuate the friction device by'the vacuum in the engine manifold.

3. An engine stablhzing device comprlslng an engine, a. frame upon which the engine is mounted, yielding means to mount the engine on the frame, a friction device between the engine and frame, and means to actuate the friction device upon idling of the engine and to render the device inoperative upon a predetermined speed of the engine.

This specification signed this 10th day of Sept. A. D. 1931.

PHILIP E. MATTHEWS. 

